/// <summary>
/// GNSS导航文件的读取
/// </summary>
/// <param name="navFilePath"></param>
/// <returns></returns>
public MixedNavFile ReadGnssNavFlie()
{
MixedNavFile f = new MixedNavFile();
f.SetHeader(ParamNavFileReader.ReadHeader(RinexFileName));
//测试版本
if (f.Header.Version == 0)
{
using (StreamReader sr = new StreamReader(RinexFileName, UnicodeEncoding.UTF8))
{
RinexUtil.SkipHeader(sr);
}
}
using (StreamReader sr = new StreamReader(RinexFileName, UnicodeEncoding.UTF8))
{
RinexUtil.SkipHeader(sr);
if (f.Header.Version < 3.0)
{
while (sr.Peek() != -1)
{
EphemerisParam record = ParamNavFileReader.ReadRecordV2(sr, f.Header);
f.Add(record);
}
}
else if (f.Header.Version >= 3.0 && f.Header.Version < 4.0)
{
while (sr.Peek() != -1)
{
string line = sr.ReadLine();
if (string.IsNullOrWhiteSpace(line))
{
continue;
}
SatClockBias recordHeader = ParamNavFileReader.ParseFirstLineV3(line, f.Header);
//轨道参数
var satType = recordHeader.Prn.SatelliteType;
if (EphemerisUtil.IsEphemerisParam(satType))
{
var record = new EphemerisParam(recordHeader);
ParamNavFileReader.ReadRecordBodyV3(sr, record);
f.Add(record);
}
else
{
var record2 = new GlonassNavRecord(recordHeader);
GlonassNaviFileReader.ParseFirstLineV3(line, record2);
GlonassNaviFileReader.ReadRecordBodyV3(sr, record2);
f.Add(record2);
}
}
}
}
return(f);
}
/// <summary>
/// 读取GLONASS导航文件
/// </summary>
/// <param name="navFilePath">路径</param>
/// <returns></returns>
public static GlonassNavFile ReadFileV2V3(string navFilePath)
{
GlonassNavFile f = new GlonassNavFile();
f.Header = ParamNavFileReader.ReadHeader(navFilePath);
//测试版本
if (f.Header.Version == 0)
{
using (StreamReader sr = new StreamReader(navFilePath, UnicodeEncoding.UTF8))
{
RinexUtil.SkipHeader(sr);
try
{
GlonassNaviFileReader.ReadRecordV2(sr, f.Header);
GlonassNaviFileReader.ReadRecordV2(sr, f.Header);
// f.Header.Version = 2.0;
}
catch
{
f.Header.Version = 1.0;
}
}
}
using (StreamReader sr = new StreamReader(navFilePath, UnicodeEncoding.UTF8))
{
RinexUtil.SkipHeader(sr);
while (sr.Peek() != -1)
{
GlonassNavRecord record = null;
if (f.Header.Version < 3)
{
record = GlonassNaviFileReader.ReadRecordV2(sr, f.Header);
}
else if (f.Header.Version >= 3)
{
record = GlonassNaviFileReader.ReadRecordV3(sr, f.Header);
}
else
{
throw new ArgumentException(" 导航文件版本 " + f.Header.Version);
}
f.Add(record);
}
}
return(f);
}